.home {
    height: 100vh;
    display: flex;
    flex-direction: column;
}  
nav {
    height: 40px;
    border-bottom: 1px solid #ccc;
    display: flex;
    a {
      flex: 1;
      text-align: center;
      line-height: 40px;
      text-decoration: none;
      color: #333;
    }
    // 此类名不被css module编译
    // :global(.active) {
    //   color: red;
    // }
    :global {
      .active {
        color: red
      }
      // .xxx {}
    }
  }
  main {
    flex: 1;
    overflow: hidden;
  }

